Liquid octane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water. If 22.6g of carbon dioxide is produced from the reaction of 48g of octane and 75.6g of oxygen gas, calculate the percent yield of carbon dioxide.

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.